About
Professional SummaryI’m particularly interested in doing research in forensic chemistry, especially on exploring potential of vibrational spectroscopy coupled with multivariate statistical techniques to create and maintain a database system for forensic samples, e.g. inks, and paints. I am now doing a research project that aimed to develop mathematical algorithm that can be used as proof of concept of a computerised library for the storage, searching and retrieval of ink samples analysed by IR spectroscopy.
Education
Academic Background-
Ph.D. Universiti Kebangsaan Malaysia, Selangor, Malaysia Applied Statistics | Completed: 2019
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M.Sc. Universiti Kebangsaan Malaysia, Malaysia Chemistry | Completed: 2012
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B.Sc. Universiti Sains Malaysia, Malaysia Forensic Sciences | Completed: 2007
Publications (21)
Selected Scholarly Contributions
Forensic assessment of cuticular hydrocarbons of saprophagous scuttle fly,
Spiniphora genitalis
Schmitz, 1940 (Diptera: Phoridae) larvae using untargeted profiling via gas chromatography-mass spectrometry (GC-MS) and chemometric methods
2026
Optimization of sample preparation protocol for UHPLC profiling of soils: Application in forensic soil provenance
2025
A Critical Review of Soil Sampling and Data Analysis Strategies for Source Tracing of Soil in Forensic Investigations
2024
Exploring volatile organic profiles of red pen inks based on gas-chromatography-flame ionization detection (GC-FID) and chemometric methods for forensic investigation purposes
2024
Exploring Spatial Variation of Soils Using Self-organizing Maps (SOMs) and UHPLC Data for Forensic Investigation
2023
Assessment of the Spatial Variability of Air Pollutant Concentrations at Industrial Background Stations in Malaysia Using Self-organizing Map (SOM)
2022
Comparison Between Self-organizing Maps and Principal Component Analysis for Assessment of Temporal Variations of Air Pollutants
2021
Predictive modelling of colossal ATR-FTIR spectral data using PLS-DA: empirical differences between PLS1-DA and PLS2-DA algorithms
2019
Statistical comparison of decision rules in PLS2-DA prediction model for classification of blue gel pen inks according to pen brand and pen model
2019
Preliminary study on morphometric analysis of the human scalp hair for discrimination of ethnic Malay and ethnic Chinese in Malaysia
2019
Effects of data pre-processing methods on classification of ATR-FTIR spectra of pen inks using partial least squares-discriminant analysis (PLS-DA)
2018
Partial least Squares-discriminant analysis (PLS-DA) for classification of high-dimensional (HD) data: A review of contemporary practice strategies and knowledge gaps.
Lee Loong Chuen
2018
Validity of the best practice in splitting data for hold-out validation strategy as performed on the ink strokes in the context of forensic science.
Lee Loong Chuen
2018
Effects of baseline correction algorithms on forensic classification of paper based on ATR-FTIR spectrum and principal component analysis (PCA).
Lee Loong Chuen
2017
A contemporary review on data preprocessing (DP) practice strategy in ATR-FTIR spectrum.
Lee Loong Chuen
2017
Applying Fourier-transform infrared spectroscopy and Self-organizing maps for forensic classification of White-copy papers.
Lee Loong Chuen
2016
Discrimination of various paper types using diffuse reflectance Ultraviolet-visible Near-infrared (UV-Vis-NIR) spectroscopy: Forensic application to questioned documents.
Lee Loong Chuen
2015
Investigating Between-model variation of the papermate® pen using infrared spectrum and multivariate statistical techniques.
Lee Loong Chuen
2014
InvestIgatIng wIthIn-group varIatIons of black ballpoInt pen Inks based on data obtaIned by mIcro-attenuated total reflectance/fourIer transform infrared spectroscopy.
Lee Loong Chuen
2013
Systematic assessment of attenuated total Reflectance-fourier transforms infrared spectroscopy coupled with multivariate analysis for forensic analysis of black ballpoint pen inks.
Lee Loong Chuen
2012
Classification and identification of black ballpoint pen inks based on multivariate analysis and infrared spectra.
Lee Loong Chuen
2012